Daniele Horton

DANIELE HORTON LEED AP O+M, CEM, MDes, Assoc. AIA Founder & Principal

Daniele Horton founded Verdani Partners in 2012, bringing over 15 years of experience in sustainability, real estate, project management, and architecture. She leads our sustainability practice and brings her expertise, energy and passion to successfully support our client’s needs. She understands the challenges of implementing green buildings from the owner’s perspective and is committed to promoting and implementing green building practices to reduce the environmental impacts of the building industry in a cost-effective and profitable way. A Harvard graduate with a degree in Sustainable Development, Horton was the Head of Sustainability for the well-known real estate firm Thomas Properties Group (TPG). She led the LEED EBOM certification of TPG’s national portfolio of office buildings (13 Million sq. ft.) during difficult economic times. Under her leadership, TPG was ranked as the Highest Environmental Performer in the Americas (in the office category) by the Global Real Estate Sustainability Benchmark (GRESB) in 2011, 2012 & 2013.

Industry Leadership

  • Benchmark Committee, GRESB, 2014 – present
  • Head of Sustainability, Parkway Properties, 2013 – present
  • Director of Sustainability, CommonWealth Partners, 2013– present
  • Advisory Board, USD Journal of Sustainable Real Estate, 2014 – present
  • Board Member, USGBC San Diego Chapter, 2013 – present
  • USGBC National, MAC & EBOM Subgroup, 2012 – present
  • Co-Chair, SDGBC Existing Buildings Committee, 2013
  • Guest Adjunct Instructor, UCSD Center for Real Estate, 2013 – present
  • Performance Committee, ULI Greenprint Foundation, 2012 – present
  • Sustainability Policy Advisory Committee, The Real Estate Roundtable, 2011 – 2013
  • Select Committee on Energy Efficiency, Senator Kevin De Leon, 2011
  • Sustainability Committee, BOMA GLA, 2010 – present
  • Industry Reviewer, USGBC’s Green Operations Guide, 2010
  • Board Member, USGBC Los Angeles Chapter, 2009-2012
  • Founder & Co-Chair, USGBC-LA Existing Buildings Committee, 2009 – present
  • California Sustainability Alliance, Green Buildings Committee, 2007 – present

Our Valuable Team Members

Neda Hemati

NEDA HEMATI Sustainability Manager
Neda is LEED AP O+M and an expert in LEED project management for existing buildings, certifying over 9.5 million square feet of existing Class A office space nationwide. Neda is passionate about educating her clients on sustainable operations and maintenance best practices through all phases of the process, from assessment through re-certification. She also brings extensive experience of energy benchmarking, cost estimation, and auditing.


TANYA GOYETTE Sustainability Manager / Creative Director
Tanya has worked on the project management side of multiple LEED EBOM projects. In addition to being a LEED AP for existing buildings, Tanya brings a diverse skillset in education, marketing, feasibility assessment, and corporate sustainability.

Bill Barnard

BILL BARNARD High Performance Green Building Design Specialist
Bill is an Architect licensed in Indiana and Arizona with over 25 years focusing on designing sustainable built environments. He brings over a decade of LEED expertise completing 8 certified projects & decades of sustainable developments throughout the country and internationally.

Mariana Young

MARIANA YOUNG Associate Architect / Sustainability Manager
Mariana is a LEED AP O+M and brings a wide range of experience in architecture and the adaptive re‐use of existing and historical buildings. With a deep passion for the environment, she combines her project management expertise and architectural acumen to support the Verdani team.

Annie Ruehl

ANNIE RUEHL Mechanical Engineer Energy Analyst
Annie is a mechanical engineer and LEED GA with a master’s degree in the Built Environment. She specializes in energy analysis and sustainable strategies. Additionally, she is involved in the DOE’s innovative Solar Decathlon competition and taught math, science and architecture in Thailand for a year.

Brian Ruehl

BRIAN RUEHL Office Manager
Brian contributes a diverse skill set comprised of entrepreneurship, IT, marketing and leadership to his duties in supporting office operations and business development as the Office Manager at Verdani Partners.

Marcia Fournier

MARCIA FOURNIER Sustainability Manager Lighting Specialist
Marcia is a Brazilian architect with 17 years of experience in energy efficiency, lighting and lighting controls. Marcia brings a marketing, sales and project management touch to the team. And she never forgets to turn off the lights.

Diego Pietzsch

DIEGO PIETZSCH Mechanical Engineer
As an engineer Diego has two years of working experience as a mechanical engineer in the fields of HVAC, refrigeration, and energy efficiency. Diego has succeeded in energy efficiency competitions and won the top award from Mercofrio for the most energy efficiency HVAC design.

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JEFF DUNBAR Sustainability Manager
Jeff is a driven sustainability professional and entrepreneur with 15 years of project and program management experience, including nine years in the residential and commercial real estate industry. Jeff has an M.S. in Environmental Science and Management, and LEED AP credentials in Building Design and Construction (BD+C) and Operations and Maintenance (O+M).

Frank Fan

FRANK FAN China Relations Manager
Frank is a LEED AP and has a Masters in Real Estate. He is well versed in LEED and is supporting the Verdani team with business development and understanding the Green Building Market in China. Frank is an expert in enterprise leadership and strategic development insights as well as public financing and clean tech financial analysis.


JENNA VAN HORN Operations Assistant
Jenna is an accredited LEED GA and a Certified Nonprofit Professional. She is a graduate of the University of San Diego, with a BBA in International Business and a BBA in Business Administration. She is interested in continuing her studies in sustainable real estate development and urban design.


Strategic Partners

Jeffrey Landreth

JEFFREY LANDRETH PE, CEM, BEAP, CPMP, LEED AP BD+C, O+M Energy Consultant / Mechanical Engineer
Jeff is a registered mechanical engineer (PE), energy consultant, and commissioning agent with experience auditing /commissioning more than 70 million square feet of buildings. He leads and supports Verdani’s engineering and other technical services initiatives.


KAREN MOZES Communications
Karen’s experiences as a successful entrepreneur, executive & life coach, writer and leadership expert are all utilized at Verdani Partners. Also, her years in the corporate world and having been the principal at a sustainability consulting firm, qualify Karen as being uniquely suited to coach in business management, communication techniques and team leadership.

Carlos Santamaria

CARLOS SANTAMARIA Director of Engineering
Carlos Santamaria is Vice President of Engineering Services for Glenborough, LLC and Principle of CEES-Advisors. Mr. Santamaria has worked in commercial real estate for over 25 years concentrating in energy efficiency, construction and operational best practices strategically positioning his company portfolio as a top performer and leader in energy efficiency and sustainability.

Steve Depew

STEVE DEPEW Engineering
Steve, VP at WSP Group, provides ongoing guidance and oversight. He has owned and operated a Commissioning / Engineering firm for 10 years. He is a Licensed Professional Mechanical Engineer, Certified Commissioning Provider, Certified Energy Manager, LEED Accredited Professional and Certified Document Technologist with over 30 years of experience in construction, design, consulting and commissioning. He is also a great mentor and teacher and provides ongoing guidance and oversight to the junior engineers working under his supervision.